Chapter 6: General diagnostic tools
The A
vaya Ethernet Routing Switch 3500 Series device has diagnostic features available through EDM
and ACLI. You can use these diagnostic tools to help you troubleshoot operational and configuration
issues. You can configure and display files, view and monitor port statistics, trace a route, run loopback
and ping tests, test the switch fabric, and view the address resolution table.
This document focuses on using ACLI to perform the majority of troubleshooting.
The command line interface is accessed through either a direct console connection to the switch or by
using the Telnet or SSH protocols to connect to the switch remotely.
ACLI command modes
ACLI command modes provide dif
ferent levels of authority for operation.
The ACLI has four major command modes, listed in order of increasing privileges:
• User EXEC
• Privileged EXEC
• Global configuration
• Interface configuration
Each mode provides a specific set of commands. The command set of a higher-privilege mode
is a superset of a lower-privilege mode. That is, all lower-privilege mode commands are
accessible when using a higher-privilege mode.
The command modes are as follows:
• User EXEC mode :
The User EXEC mode (also referred to as exec mode) is the default ACLI command
mode. User EXEC is the initial mode of access when the switch is first turned on and
provides a limited subset of ACLI commands. This mode is the most restrictive ACLI mode
and has few commands available.
• Privileged EXEC mode:
The Privileged EXEC mode (also referred to as privExec mode) enables you to perform
basic switch-level management tasks, such as downloading software images, setting
passwords, and booting the switch. PrivExec is an unrestricted mode that allows you to
view all settings on the switch, and if you are logged in with write access, you have access
Troubleshooting 5.1 February 2013 23
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